in lib/http_multi_server.dart [240:250]
HttpConnectionsInfo connectionsInfo() {
var info = HttpConnectionsInfo();
for (var server in _servers) {
var subInfo = server.connectionsInfo();
info.total += subInfo.total;
info.active += subInfo.active;
info.idle += subInfo.idle;
info.closing += subInfo.closing;
}
return info;
}